The Seniaru Mori, known as the sacred forest, is a land that the Jiangsu mistakenly travel through while going to the Senso No Shima in Episode 17, which bears the same name. As Hajito encounters the land, a bluish spirit named Shujinko attacks them while Hajito tries to hunt the animals. The animals, believed to be the first ones ever introduced in Japan, hold a special power to the religion as the powerful spirits of the elements.
Country
Built
Japan
Natural (covered in Episode 17 by the Jiangsu)
Trivia
Its Keeper, Shujinko, begins a duel after the Jiangsu hunt the sacred animals.
A sword came down after Shujinko descended into the ground.
The Shiatsu has also entered the sacred ground, but only to help the Jiangsu.
The sword is also covered in the blue haze that Shujinko has.